As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
TROUBLESHOOT PER FIM 21-51 TASKS 830-831 FOUND LOWER FLOW CONTROL VALVE PROXIMITY SWITCH AT FAULT. MAT SHOWS MX MSG 21-24303. SAMC TEXT: REPLACE THE LOWER FLOW CONTROL VALVE ON THE LEFT PACK. REMOVED AND REPLACED LOWER FLOW CONTROL VALVE. OPS CHECK AND LEAK CHECK GOOD AT THIS TIME PER AMM.